Mortice Lock with an adjustable Roller - Matt Black FinishDescription Stainless steel construction for most of the lock parts including the roller tongue and the deadbolt Ideally installs with the pull handle for the entrance doors Open and close the door without the need of the swing handles Adjustable roller tongue to suits varies door gaps Comes as a complete set including two matt black escutcheons, striker plate, matt black brass cylinder, 55mm backset roller mortise lock & mounting screws Keyed alike